Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {19, 21, 8, 11, 23, 17} → ______
- Prime numbers in {21, 7, 19, 11, 13, 23} → ______
- Prime numbers in {7, 27, 23, 12, 25, 11} → ______
- Prime numbers in {12, 29, 25, 5, 23, 7} → ______
- Prime numbers in {7, 25, 23, 5, 11, 17} → ______
- Prime numbers in {7, 19, 8, 13, 25, 2} → ______
- Prime numbers in {25, 17, 2, 11, 23, 5} → ______
- Prime numbers in {23, 7, 29, 3, 25, 17} → ______
- Prime numbers in {7, 13, 2, 9, 25, 15} → ______
- Prime numbers in {2, 23, 21, 13, 3, 29} → ______
- Prime numbers in {5, 17, 2, 7, 11, 8} → ______
- Prime numbers in {11, 21, 7, 2, 5, 15} → ______
- Prime numbers in {2, 11, 25, 15, 8, 23} → ______
- Prime numbers in {25, 2, 15, 5, 17, 11} → ______
- Prime numbers in {15, 27, 25, 5, 12, 7} → ______
- Prime numbers in {27, 19, 12, 11, 2, 17} → ______
- Prime numbers in {12, 27, 17, 23, 7, 2} → ______
- Prime numbers in {15, 2, 25, 23, 12, 9} → ______
- Prime numbers in {7, 8, 11, 17, 29, 27} → ______
- Prime numbers in {11, 21, 17, 29, 23, 3} → ______